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(中國中元國際工程有限公司, 北京 100089)
[摘要]相較于傳統(tǒng)抗震方案,減震方案通過增設(shè)耗能減震裝置,有效增加結(jié)構(gòu)體系的耗能防線,提升主體結(jié)構(gòu)抗震性能。基于8度區(qū)某310m高實際超高層項目,對減震方案的耗能裝置進(jìn)行了布設(shè)比選、參數(shù)優(yōu)化及減震效果分析評價。探討了傳統(tǒng)抗震方案與減震方案兩種不同體系的異同,進(jìn)行了不同設(shè)防水準(zhǔn)地震下的計算分析,從結(jié)構(gòu)整體指標(biāo)、抗震性能、經(jīng)濟(jì)性等方面對比說明了減震方案的優(yōu)勢。
[關(guān)鍵詞]超高層結(jié)構(gòu); 高烈度地震區(qū); 耗能減震; 黏滯阻尼器
中圖分類號:TU398-7文獻(xiàn)標(biāo)識碼:A文章編號:1002-848X(2020)21-0084-05
Energy-dissipated analysis and design on a super high-rise structure in high seismic precautionary intensity area
FU Yangqiang, ZHANG Tongyi, DING Meng, CHEN Jun, ZHAO Xingguo, LUO Youxin
(China IPPR International Engineering Co., Ltd., Beijing 100089, China)
Abstract:Compared with the traditional seismic scheme, the energy-dissipated scheme can effectively increase the energy dissipation line of the structural system and improve the seismic performance of the main structure by adding energy dissipation devices. Based on a practical 310m super high-rise project in the 8-degree high seismic precautionary intensity area, the comparison selection, parameter optimization and energy dissipation effect analysis and evaluation of the energy dissipation devices in the energy-dissipated scheme were carried out. The similarities and differences of two different structural systems of traditional aseismic scheme and energy-dissipated scheme were discussed, and the calculation and analysis were conducted under different fortification levels of earthquakes, and the advantages of energy-dissipated scheme were illustrated from the aspects of overall structure index, seismic performance and economy.
Keywords:super high-rise structure; high seismic precautionary intensity area; energy dissipation; viscous damper
作者簡介:付仰強(qiáng),碩士,高級工程師,一級注冊結(jié)構(gòu)工程師,Email:fuyangqiang@ippr.net; 通信作者:張同億,博士,教授級高級工程師,一級注冊結(jié)構(gòu)工程師,Email:zhangtongyi@ippr.net。